Method of preparing a freeze-dried formulation of a drug

ABSTRACT

In a freeze-drying method for producing a dried pharmaceutical compound or preparation, a first liquid is frozen, a second liquid is added to the frozen first liquid and is frozen thereon, and the frozen first and second liquids are freeze-dried together, in which at least one of said first and second liquids contains said pharmaceutical compound or preparation dissolved or suspended therein. The other liquid or liquids may be pure solvent (generally water) or may contain one or more other substances.



